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A NASCAR racecar rounds one end of the Martinsville Speedway. This end of the track is a turn with radius approximately 187 ft. If we approximate the track to be completely flat and the racecar is traveling at a constant 68.00 mph around the turn, what is the racecar\'s centripetal (radial) acceleration? What is the force responsible for the centripetal acceleration in this case? To keep from skidding into the wall on the outside of the turn what is the minimum coefficient of static friction between the racecar\'s tires and track?
If 5.0 Â´ 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor
4 Skater A, mass 55.0 kg, moving at 14.0 m/s bumps into stationary Skater B, mass 65.0 kg. What are the final speeds of the two skaters
You need to make a series ac circuit having a resonance angular frequency of 1600 rad/s using a 148 ohm resistor, a 10.9 uf capacitor, and an inductor. What should be the inductance of the inductor
q1. a 20 kg block is at rest on a horizontal floor. if you push horizontally on the 20 kg block with a force of 50 n it
A car races at a constant speed of 25 m/s around a circular track with a radius of 150 meters. find the displacement between the starting and ending points
What would be the final temperature of 100g of 16°C water when 107 g of 40°C iron nails are submerged in it? (The specific heat of iron is 0.12 cal/g °C. Here you must equate the heat gained by the water to the heat lost by the nails.)
An electric motor rotating a workshop grinding wheel at a rate of 9.80x10^1 rev/min is switched off. how long does it take for the grinding wheel to stop
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
A small spherical insulator of mass 8 x 10 kg and change +0.600 micro Coulomb is hung by a tin wire of negligible mass. A charge of -0.900 micro Coulomb is held 0.150 m away the sphere and straight to the right of it, so the wire makes the angle with..
What frequency is heard by an observer who hears the 450-Hz siren on a police car traveling at 35 m/s away from her
From colonial times through the 1960s, the primary mode of mental illness treatment was institutional. What factors were responsible for this shift
A population of 500,000 around a nuclear facility receives an average wholebody dose of 0.5 rad as a result of an accidental release of radionuclides. Estimate the collective gonad dose received
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